I'm having some crashes too. Here are my critical system components:

Windows XP Pro, 1 Gig RAM, Vue 4.03

I have a little utility I downloaded from the net called "Memstats" (it's freeware - go to Download.com to get it). Memstats will tell you how much RAM is available and being used in real time.

Using Memstats, I've established that Vue 4.03 doesn't properly clear up memory between renders. I can watch memory go to waste after each preview render.

Once my entire 1 gigabyte of physical RAM is used on my computer, Vue will crash and at times corrupt files. I've had material presets and atmosphere presets become corrupted because there wasn't enough RAM.

Also, I discovered yesterday that pushing Vue's polygon count past approximately 3 million made the program unstable and/or unreliable.

The good news is that when I shut-down Vue, the program frees the memory lost to the rendering procedure. Rebooting is not necessary, you can just start Vue up again without undue memory loss.

Charles

Charles